These six round stained glass windows (roundels) from the early sixteenth century were acquired in the Netherlands by Horace Walpole (1717-1797), famed collector, author, and son of Britain’s first Prime Minister, Sir Robert Walpole. Horace Walpole collected over 450 pieces of stained glass and had them placed in windows throughout the Gothic castle known as Strawberry Hill in Twickenham, England. In 1842, much of the glass was dispersed during an estate sale organized by Walpole’s heir, the Earl of Waldegrave. Eventually, these six roundels were combined with various stained glass fragments to form two panels. In 1941, Baltimore collector Saidie A. May purchased the two stained glass panels at the monumental sale of art and antiquities from the William Randolph Hearst collection held at Gimbels department store in New York City. She had the panels separated to form individual windows, which she subsequently donated to the BMA. The six roundels and surrounding stained glass fragments have now been restored and reunited as two panels. The research, conservation, and installation of this stained glass panel were made possible with the generous support of The Richard C. von Hess Foundation.